FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term cephalopharyngeal skeleton ID (Ontology) FBbt:00001845 (Fly Anatomy)
Definition A group of connected sclerites of the anterior embryonic/larval digestive system (atrium, pharynx and dorsal pouch). The cibarial dilator muscles connect to the cephalopharyngeal skeleton to lift the roof of the pharynx and thereby widen its lumen (Jurgens, 1986).[ FlyBase:FBrf0007734 FlyBase:FBrf0045366 ]
Also Known As "cephalo-pharyngeal skeleton" ; "CPS" ; "larval head skeleton" (for all, see Synonyms field below)
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN     292
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      20
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      60
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 cephalopharyngeal skeleton (all annotations which use CV term, excluding "NOT" statements)     292      5      4     21     60
     cephalopharyngeal skeleton | anterior | germline clone       1       --       --       --       --
     cephalopharyngeal skeleton | embryonic stage      20       --       --       2      1
     cephalopharyngeal skeleton | embryonic stage | maternal effect       2       --       --       1      1
     cephalopharyngeal skeleton | germline clone      13       --       --       5      1
     cephalopharyngeal skeleton | germline clone | maternal effect       8       --       --       --       --
     cephalopharyngeal skeleton | germline clone | rescuable maternal effect       1       --       --       --       --
     cephalopharyngeal skeleton | heat sensitive       4       --       --       --       3
     cephalopharyngeal skeleton | larval stage       6       --       --       1       --
     cephalopharyngeal skeleton | maternal effect      25       --       --       1       --
     cephalopharyngeal skeleton | maternal effect | cold sensitive       2       --       --       --       --
     cephalopharyngeal skeleton | maternal effect | heat sensitive       2       --       --       --       --
     cephalopharyngeal skeleton | maternal effect | somatic clone       2       --       --       --       --
     cephalopharyngeal skeleton | P-stage       3       --       --       --       6
     cephalopharyngeal skeleton | posterior       2       --       --       --       1
     cephalopharyngeal skeleton | ventral       1       --       --       1       --
Spanning Tree (Parents/Children)
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  acellular anatomical structure
   |__cuticular specialization
       |__cephalopharyngeal skeleton  565 rec.
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Is a cuticular specialization
Part of embryonic head
larval head
larval digestive system
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UBERON:6001845